Adjustable connecter between a scale beam and shelf lever or pendulum



Nov. 17, 1925.

G. w BRITTON ADJUSTABLE CONNECTER BETWEEN A SCALE BEAM AND SHELF LEVER 0R PENDULUN Filed May 13. 1925 Inventor: 2 11; W. @mmw UNITE STATES FATE? li'FlQlEa GEORGE W. vBRI'lCCllOIl'; OF HATvILTUlFJ. ONTARIO, CANADA. ASSIGNOR T JAMES P. STEEDMAH, OF HAMILTON, CANADA.

ADJUSTABLE CDNNECTER BE'IVJEEN A SCALE BEAEZ AND SHELF LEVER OR PEND'ULUE'I.

Application filed May 13. 1925.

To all 107mm it may concern:

Be it known that I, GEORGE W. Barr'ron, a subject of the King of Great Britain, and resident of theci'ty of Hamilton, county of l v entworth, Province of @ntario, in the Doininion of Canada, have invented certain new and useful Improvements in an Adjustable Connector Between a Scale Beam and Shelf Lever or l endnlum, as described in the following specification and illustrated in the accompanying drawings that form part of the same.

The principal object of this invention is, to overcome the difficulties in aligning the snelf lever or pendulum of a scale with the beam, thereby eliminating a great deal of machining and fitting and incidentally effecting a considerable saving in cost of construction, and further ensuring the maintenance of adjustments.

The principal feature of the invention consists in the arrangement of angularly adjustable bearing blocks upon either end of the shackle for connecting the beam with the shelf lever or pendulum ot' the scale, where by the shackle will operate freely and accurately with an angular set.

In the drawings, Figure l is an elevational view of a portion of' the mechanism of a dial scale showing the improved shackle arrangedbetween the beam and the pendulum.

Figure 2 is an enlarged diagrammatic elevational View of the improved shackle show in g the orifsetalignment.

Figure 3 is a further enlarged perspective view of the improved shackle connection.

In the construction of scale mechanism it is a very dihicult matter to arrange the main beam and the shelf lever or pendulum, as the case may be, in perfect alignment and a very great amount of labor and expert manipulation is required in order to achieve :1 satisfactory result in the assembling of a scale in such a manner that the shelf lever or pendulum and the main beam will cooperate in harmony.

The present invention has been devised to eliminate the necessity for such exact adjustment in the setting of the beams and levers.

In the accomplishment of this result, the construction as herein shown, consists of pairs of blocks 1 and 2, the blocks of each erial No. 30,127.

pair being rigidly secured to cross plates 3 and 4: respectively.

The blocks are provided with orifices 5 in which are arranged the V bearing blocks 6.

The paired blocks are arranged to straddle the beam 7 and the shelf lever or pendulum 8 respectively and the V blocks engage the usual knife edge supports 7 and 8.

Secured to each of the cross plates is a plate 9 held tightly in position by means of screws 10 arranged either side of the central socket member 11 in which the turn buckle rod 12 is secured.

Adjusting screws 13 are arranged at the outer ends of each of the plates 9. These screws are threaded in the plates 9 and abut the face of the cross plates 3 or a and the screws 10 are tightened against the plates 9 to hold them securely.

It will be seen that by loosening the inner screws 10 and adjusting the screws 13 any desirable tilt may be given to the plate 9, that is within the limits of the screws, and when the plate is adjusted the screws 10 may be tightened thereby securing the rod 12 in an offset or angular position in relation to the blocks.

This feature of adjustment enables the setting up of scales in such a manner that even though there may be some slight difference between the alignment of the main scald beam and the pendulum or shelf lover, the bearing blocks on cit-her end of the connecting shackle may be adjusted to correct the offset and to retain a fixed obliquity which will act as effectively as if the beam were in perfect alignment.

What I claim as my invention is l. A. scale beam connccter, comprising the combination with the scale beam and pen.- dulunl, of a shackle having adjustable hear ing blocks at the ends adapted to engage said members.

2. A scale beam connectm' comprising the combination with the scale beam and pendulum members, of a shackle, and bearing blocks secured to the ends of said shackle to engage said members and adapted to be ad justed in offset angular relation to the shackle.

3. A scale beam connecter, comprising the combination with the scale beam and pendulum members, of bearing blocks adapted to straddle said members, plates abutting 19 shackle rod, a plate rigidly said blocks, adjusting screws secured in said plates and engagingsaid blocks fastening screws extending through said plates into said blocks, and a shackle rod connecting said plates.

4;. A scale beam connecter, comprising the combination with the scale beam and pendulum members, of bearing blocks adapted to straddle said members, an adjustable secured to each end of said shackle rod and having a pair of screw holes arranged at either side of the central connection, and threaded holes at the ends adjusting screws secured in the outer threaded holes in the plates, and adjustable fastening screws extending through the inner holes in said plates and threaded in said blocks.

GEORGE WV. BRITTON. 

